13.5 to 16 volts.
13-15 volts, depends on what the computer wants.
Find a volt meter, check the battery voltage with the engine stopped, it should be a around 12 V. Now start the engine and the voltage should be around 13.5 V. If the alternator isn't putting out about 13.5 (+/- .5 V) the replacment alternator could be bad or you might have a bad connection somewhere.
the alternator voltage at the battery should be between 12.4voltsv-13.6 volts
You need to check and make sure the alternator is charging. You could have gotten a defective one or if you got a used one it may be bad. Get a digital multimeter and with the vehicle off check the voltage at the battery. Should be 12+ volts with a charged battery. Start the vehicle and check the voltage again, should be 13-14 volts or better. If no voltage increase check the big output terminal (thick red wire usually going to it) at the alternator and see it the alternator is putting out voltage. If no voltage other than battery voltage then the alternator is not working. This is assuming that the alternator has an internal voltage regulator (most now do). Without year/make/model/engine size it's very hard to give you decent direction other that generic help :-) **I am assuming you have tested the battery**
it should have the voltage regulator built into the alternator
The 1993 Chevrolet Cavalier voltage regulator should be mounted on top of the alternator. The alternator will be on the front of the engine.
As little as possible
Yes. You should read from 13.5 to 15.5 volts at the battery with the engine running. Your alternator is not putting out any voltage. Remove it and have it tested at your local auto parts store.
The battery light is for low alternator output voltage. Try testing the alternator output using a miltimeter and if its less than 13 volts your alternator isn't putting out what it should. If it has low output check the belt tension and all wire connections before replacing alternator
they should fluctuate when your revving your engine and letting it down to idle that's the voltage regulator stopping the alternator from putting out to much power it is perfectly normal.
it should have an internally regulated alternator
it should be built in to the alternator